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Concrete rear-planting anchoring rib construction method

A construction method and technology for anchoring bars, which are applied in building maintenance, construction, building construction, etc., can solve the problems of difficult control of construction quality, damage to concrete structures, low construction efficiency, etc. Efficiency, beneficial to construction, and the effect of improving construction efficiency

Inactive Publication Date: 2019-01-11
SINOHYDRO BUREAU 14 CO LTD
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  • Description
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Problems solved by technology

[0003] For the post-planting of reinforced concrete, it is usually affected by the internal reinforcement of the concrete. During the hole-making process of post-planting anchor bars, the steel bars are often punched, resulting in multiple holes. The porosity rate is low and the construction efficiency is low. At the same time, the concrete structure It also causes unnecessary damage, and the construction quality is not easy to control

Method used

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  • Concrete rear-planting anchoring rib construction method
  • Concrete rear-planting anchoring rib construction method

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Embodiment

[0022] A method for constructing post-concrete anchor bars, comprising the following steps:

[0023] Step 1) Before the construction of the concrete structure 1, after the steel bar binding and adjustment are completed, install the post-planting anchor bar guide pipe 3, and then install the concrete pouring formwork. The large-volume concrete structure can also be reinforced first. After the calibration is completed, pre-embed the guide tube 3 for the post-planted anchor bar; The hole diameter is the same or larger than the reinforcement hole 2mm to 3mm of the post-planted anchor bars 4. The outer port is pressed against the concrete pouring formwork to ensure that the outer port of the post-planting anchor bar guide pipe 3 is flush with the concrete structure 1 poured in the subsequent steps, and the inner port of the post-plant anchor bar guide tube 3 passes through the area affected by the steel bars in the concrete structure, and then do After planting, the plugging of th...

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Abstract

The invention relates to a concrete rear-planting anchoring rib construction method and belongs to the building engineering technology field. In the invention, a rear-planting anchoring rib guide pipeis pre-embedded in a precast concrete structure so as to guarantee that later-period anchoring rib hole making can avoid the influence of a reinforcing steel bar; anchoring rib hole making becomes convenient; a hole making formation rate and construction efficiency are increased; the influence on the precast concrete structure is reduced; and anchoring rib construction quality is guaranteed. Compared with a direct pre-embedded insertion rib, the influence on precast concrete template manufacturing, installation and dismounting can be reduced, which is good for the rapid construction of the precast concrete structure. Compared with a conventional rear-planting anchoring rib construction method, by using the construction method of the invention, a rear-planting anchoring rib hole making process can be ensured to effectively avoid the reinforcing steel bars in the precast concrete structure, construction efficiency is increased, unnecessary damages to the precast concrete structure are avoided, construction quality is easy to control and construction is convenient. And simultaneously, the method can be extended into other hole drilling construction projects in reinforced concrete, ausage range is enlarged, an application prospect is good, and good economic and social benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of construction engineering, and in particular relates to a construction method for concrete post-planting anchor bars. Background technique [0002] In the field of water conservancy and hydropower projects, some hydraulic structures are often constructed in several phases, and even different construction phases undertake different functions, such as the reconstruction or sealing of diversion tunnels - flood discharge bottom holes, the reconstruction of diversion open channels - spillways, etc. In the later reconstruction, in order to ensure the bonding quality with the previously constructed concrete, it is often necessary to drill holes and plant anchor bars on the concrete surface; Pre-embedding during concrete pouring has a great impact on the selection, installation and removal of column and beam formwork, and is not conducive to the quality control of the appearance of the concrete structure, affectin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G21/12E04G23/02
CPCE04G21/12E04G23/0266
Inventor 李占彪莫军梁皓余玉红方洪赵海涛吴永强
Owner SINOHYDRO BUREAU 14 CO LTD
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